December 1988 Dangaus reiškiniai

Stebėtojo vieta:Beijing (39.904°, 116.407°)

Mėnesio dangaus reiškinių apžvalga

25 astronominių įvykių iš viso, įskaitant 5 Mėnulio fazes ir 4 planetinius įvykius.

Dienos dangaus reiškiniai

Visi laikai nurodyti vietos laiku (Asia/Shanghai)

Group Data Saulėtekis/Saulėlydis Mėnulio patekėjimas/leidimasis Mėnulio fazė Dangaus reiškiniai

Planetary outlook

December 1988 mid-month observing conditions

Mercury

Excellent
Regimasis ryškis: -0.9
Žvaigždynas: Capricornus
Angular diameter: 4.8"
Status: near greatest western elongation

Observation tip: Very bright, easily visible to the naked eye; Mercury stays close to the Sun; best seen at dusk or dawn

Rektascensija: 18h03m31s
Deklinacija: -25°22'21"

Venus

Excellent
Regimasis ryškis: -3.9
Žvaigždynas: Scorpius
Angular diameter: 11.5"
Status: near inferior conjunction

Observation tip: Very bright, easily visible to the naked eye; Venus is the brightest planet and is best seen at dusk or dawn

Rektascensija: 15h38m29s
Deklinacija: -18°00'07"

Mars

Excellent
Regimasis ryškis: -0.5
Žvaigždynas: Aries
Angular diameter: 11.3"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Its reddish appearance is obvious; it is best observed near opposition

Rektascensija: 00h44m19s
Deklinacija: +04°52'24"

Jupiter

Excellent
Regimasis ryškis: -2.8
Žvaigždynas: Taurus
Angular diameter: 47.9"
Status: near western quadrature

Observation tip: Very bright, easily visible to the naked eye; Its moons are easy to spot and it is excellent for telescope observing

Rektascensija: 03h44m54s
Deklinacija: +18°49'48"

Saturn

Excellent
Regimasis ryškis: 0.5
Žvaigždynas: Capricornus
Angular diameter: 15.1"
Status: near western quadrature

Observation tip: Visible to the naked eye; Saturn’s rings require a telescope to see clearly

Rektascensija: 18h15m33s
Deklinacija: -22°39'25"

Uranus

Fair
Regimasis ryškis: 5.8
Žvaigždynas: Capricornus
Angular diameter: 3.5"
Status: near western quadrature

Observation tip: Binoculars are recommended; Binoculars or a telescope are recommended

Rektascensija: 18h03m11s
Deklinacija: -23°39'27"

Neptune

Fair
Regimasis ryškis: 7.9
Žvaigždynas: Capricornus
Angular diameter: 2.2"
Status: near western quadrature

Observation tip: A telescope is required; A telescope is required; Neptune appears blue-green

Rektascensija: 18h40m08s
Deklinacija: -22°12'47"

Moon

Excellent
Regimasis ryškis: -12.7
Žvaigždynas: Pisces
Angular diameter: 12550.7"
Status: Moon illumination 36.2%

Observation tip: Moon illumination 36.2%; good for observing lunar surface detail

Rektascensija: 22h35m21s
Deklinacija: -08°58'28"